After a vision in his monastery in the Rhos Valley, he set out next day with two monks to Jerusalem to aid the Patriarch. While there his preachingconvertedanti–Christians. Legend says that once while he was preaching, a dove descended to his shoulder to show he had the blessings of the Spirit, and that the earth rose to lift him high above the people so that he could be heard by them all. Another time when was preaching to a crowd at Llandewi Brefi, people on the outer edges could not hear, so he spread a handkerchief on the ground, stood on it, and the ground beneath rose up in a pillar so all could hear.